ASTM E878-20

Standard Test Method for Determination of Titanium in Iron Ores and Related Materials by Diantipyrylmethane Ultraviolet Spectrophotometry

SIGNIFICANCE AND USE
5.1 This test method is intended to be used for compliance with compositional specifications for titanium content. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882.
SCOPE
1.1 This test method covers the determination of titanium in iron ores, concentrates, and agglomerates in the compositional range from 0.01 % to 6.0 % titanium.
Note 1: As used in this test method (except as related to the term relative standard deviation), percent  or “%” refers to mass fraction (mas/mass) of the form g/100 g.  
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This test method has been evaluated in accordance with Practice E1601 and Guide E1763. Unless otherwise noted in Section 13, the lower limit in the scope of each method specifies the lowest analyte content that may be analyzed with acceptable error (defined as a nominal 5 % risk of obtaining a 50 % or larger relative difference in results on the same test sample in two laboratories).  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Oct-2020
• ICS: 73.060.10 - Iron ores
• Technical Committee: E01 - Analytical Chemistry for Metals, Ores, and Related Materials
• Drafting Committee: E01.02 - Ores, Concentrates, and Related Metallurgical Materials

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E878 − 20
Standard Test Method for
Determination of Titanium in Iron Ores and Related
Materials by Diantipyrylmethane Ultraviolet
1
Spectrophotometry
This standard is issued under the fixed designation E878; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the determination of titanium in
D1193 Specification for Reagent Water
iron ores, concentrates, and agglomerates in the compositional
E29 Practice for Using Significant Digits in Test Data to
range from 0.01 % to 6.0 % titanium.
Determine Conformance with Specifications
NOTE 1—As used in this test method (except as related to the term
E50 Practices for Apparatus, Reagents, and Safety Consid-
relative standard deviation), percent or “%” refers to mass fraction
erations for Chemical Analysis of Metals, Ores, and
(mas/mass) of the form g/100 g.
Related Materials
1.2 Units—The values stated in SI units are to be regarded
E135 Terminology Relating to Analytical Chemistry for
as standard. No other units of measurement are included in this
Metals, Ores, and Related Materials
standard.
E877 Practice for Sampling and Sample Preparation of Iron
Ores and Related Materials for Determination of Chemi-
1.3 This test method has been evaluated in accordance with
cal Composition and Physical Properties
Practice E1601 and Guide E1763. Unless otherwise noted in
E882 Guide for Accountability and Quality Control in the
Section 13, the lower limit in the scope of each method
Chemical Analysis Laboratory
specifies the lowest analyte content that may be analyzed with
E1601 Practice for Conducting an Interlaboratory Study to
acceptable error (defined as a nominal 5 % risk of obtaining a
Evaluate the Performance of an Analytical Method
50 % or larger relative difference in results on the same test
E1763 Guide for Interpretation and Use of Results from
sample in two laboratories).
Interlaboratory Testing of Chemical Analysis Methods
3
1.4 This standard does not purport to address all of the
(Withdrawn 2015)
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.1 For definitions of terms used in this test method, refer to
mine the applicability of regulatory limitations prior to use.
Terminology E135.
1.5 This international standard was developed in accor-
3.2 Definitions of Terms Specific to This Standard:
dance with internationally recognized principles on standard-
3.2.1 Relative Standard Deviation (RSD), n—the RSD tells
ization established in the Decision on Principles for the
youwhetherthe“regular”standarddeviationisasmallorlarge
Development of International Standards, Guides and Recom-
quantity when compared to the mean for the data set.
mendations issued by the World Trade Organization Technical
4. Summary of Test Method
Barriers to Trade (TBT) Committee.
4.1 The sample is decomposed by treatment with HCl,
HNO ,andH SO ,orbysinteringwithsodiumperoxide,orby
3 2 4
1
This test method is under the jurisdiction of ASTM Committee E01 on
2
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct For referenced ASTM standards, visit the ASTM website, www.astm.org, or
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal- contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
lurgical Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Nov. 1, 2020. Published July 2021. Originally the ASTM website.
3
approved in 1982. Last previous edition approved in 2012 as E878 – 12. DOI: The last approved version of this historical standard is referenced on
10.1520/E0878-20. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E878 − 20
fusion with sodium tetraborate and sodium carbonate. Iron is 7.9 Sodium Tetraborate/Sodium Carbonate (Na B O /
2 4 7
reduced in an acid medium with ascorbic acid, the color is Na CO ) Fusion Mixture—Mix1partofNa B O and1partof
2 3 2 4 7
developed with diantipyrylmethane, and the absorbance is Na CO and store in an airtight container.
2 3
measured at 385 nm.
7.10 Titanium Calibration Solution:
7.10.1 Solution
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E878 − 12 E878 − 20
Standard Test Method for
Determination of Titanium in Iron Ores and Related
Materials by Diantipyrylmethane Ultraviolet
1
Spectrophotometry
This standard is issued under the fixed designation E878; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers the determination of titanium in iron ores, concentrates, and agglomerates in the compositional range
from 0.01 % to 6.0 % titanium.
NOTE 1—As used in this test method (except as related to the term relative standard deviation), percent or “%” refers to mass fraction (wt/wt)(mas/mass)
of the form g/100g.g/100 g.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.3 This test method has been evaluated in accordance with Practice E1601 and Guide E1763. Unless otherwise noted in Section
13, the lower limit in the scope of each method specifies the lowest analyte content that may be analyzed with acceptable error
(defined as a nominal 5 % risk of obtaining a 50 % or larger relative difference in results on the same test sample in two
laboratories).
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
1
This test method is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved Aug. 1, 2012Nov. 1, 2020. Published August 2012July 2021. Originally approved in 1982. Last previous edition approved in 20112012 as
E878 – 11.E878 – 12. DOI: 10.1520/E0878-12.10.1520/E0878-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E878 − 20
E877 Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical
Composition and Physical Properties
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
E1763 Guide for Interpretation and Use of Results from Interlaboratory Testing of Chemical Analysis Methods (Withdrawn
3
2015)
3. Terminology
3.1 For definitions of terms used in this test method, refer to Terminology E135.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 Relative Standard Deviation (RSD), n—the RSD tells you whether the “regular” standard deviation is a small or large
quantity when compared to the mean for the data set.
4. Summary of Test Method
4.1 The sample is decomposed by treatment with hydrochloric, nitric,HCl, HNO , and sulfuricH SO acids, , or by sintering with
3 2 4
sodium peroxide, or by fusion with sodium tetraborate and sodium carbonate. Iron is reduced in an acid medium with ascorbic acid,
the color is developed with diantipyrylmethane, and the absorbance is measured at approximately 385 nm.
5. Significance and Use
5.1 This tes
...